07 October 2013
1)If you have Submitted DIN1 to MCA21 and paid challan fee on the payment receipt it self it will show DIN number of applicant . . if it is not done with this you can check by "tracking transaction status" in mca portal,
2)you can also search din by name if applicant and date of birth and father name . . a)login to mca portal b)click on check companies /llp in which he is director.. c)once you clicked on that,,click on mirror symble on pop up window which arises after above step d)you can understand easily after process by this
07 October 2013
that mean you neither have cjallan copy or SRN of challan... if you r not able to find the same by the process as discussed by chackrapani sir, then mail me the name, fathers name and dob of concern....